Welding apparatus for thermoplastic materials



FIG. 1 is a front right isometric view of the welding apparatus of our design;

FIG. 2 is a right-side view thereof;

FIG. 3 is a left-side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof. 

CLAIM The ornamental design for a welding apparatus for thermoplastic materials, as shown and described. 